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【文章內(nèi)容簡介】 Defines marking of pictures in lowest temporal layer as not used for reference. Default is 1 (true). BQP Defines use of hierarchical QP assignment assuming no delay restriction even in lowdelay mode. (See Table 2) Default is 0 (false). TLayeringBasedOnCodingStruct Defines use of temporal layer ID assignment based on the hierarchical coding structure. If this is defined, pictures with higher temporal layer ID than current picture’s temporal layer ID will not be used as reference. Default is 0 (false). TLayerSwitchingFlag_L0 Defines temporal layer switching point flag for temporal layer 0. If this flag is set, then after decoding(encoding) a picture with temporal layer ID equal to 0, all reference pictures with temporal layer ID greater than 0 will be marked as unused. Default is 0 (false). TLayerSwitchingFlag_L1 Defines temporal layer switching point flag for temporal layer 1. If this flag is set, then after decoding(encoding) a picture with temporal layer ID equal to 1, all reference pictures with temporal layer ID greater than 1 will be marked as unused. Default is 0 (false). TLayerSwitchingFlag_L2 Defines temporal layer switching point flag for temporal layer 2. If this flag is set, then after decoding(encoding) a picture with temporal layer ID equal to 2, all reference pictures with temporal layer ID greater than 2 will be marked as unused. Default is 0 (false). TLayerSwitchingFlag_L3 Defines temporal layer switching point flag for temporal layer 3. If this flag is set, then after decoding(encoding) a picture with temporal layer ID equal to 3, all reference pictures with temporal layer ID greater than 3 will be marked as unused. Default is 0 (false). Motion estimation parameters FastSearch Defines use of fast motion search. If this parameter has a value of 0, full search method is used, otherwise, fast motion estimation method is used. Default is 1. Note: the current software allows the value to range from 0 to 2, but only 0 (full) and 1 (fast) are supported. SearchRange Defines the search range used for motion estimation. Default is 96. Shorthand form is –sr. Note: the search range is defined around a predictor. Motion vectors derived by the motion estimation may thus have values larger than the search range. Page: 7 Date Saved: 20210124 BipredSearchRange Defines the search range used for biprediction refinement in the motion estimation. Default is 4. HadamardME Defines use of the Hadamard transform in fractionalpel motion estimation. Otherwise, SAD is used instead. Default is 1 (true). ASR Defines use of adaptive search range, which dynamically adjusts the motion search range according to the POC difference between the current and the reference pictures. Default is 0 (false). SearchRagne’ = Round( SearchRange * ADAPT_SR_SCALE * abs( POCcur – POCref ) / RateGOPSize ) Quantization parameters QP Defines base value of the quantization parameter. Default is . Shorthand form is –q. MaxCUDQPDepth Defines max depth of a minimum CuDQP for subLCUlevel delta QP. Default is 0. RDOQ Defines whether ratedistortionoptimized quantization is used in the encoder. Default is 1 (on). DeltaQpRD Defines maximum QP offset at slice level for multipass slice encoding. In the encoder, each slice is tested multiple times by using slice QP values in the range [DeltaQpRD, DeptaQpRD], and the best QP value is chosen as the slice QP. Default is 0. Shorthand form is –dqr. MaxDeltaQP Defines maximum QP offset at largest coding unit level for blocklevel adaptive QP assignment scheme. In the encoder, each largest coding unit is tested multiple times by using the QP values in the range [MaxDeltaQP, MaxDeltaQP], and the best QP value is chosen as the QP value of the largest coding unit. Default is 0. Shorthand form is –d. dQPFile Defines file name containing list of QP value deltas. The nth line (where n is 0 for the first line) of this file co
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